early 17th cent. (as a verb): partly an alteration of obsolete plotchin the same sense (of unknown origin), influenced by blot; partly a blend of blotand botch
英英释义行业释义网络释义
noun
1.an irregularly shaped spot
vern
1.mark with spots or blotches of different color or shades of color as if stained
农学
1.疤斑
医学
1.污斑,污点
-blotch
1 . 斑点
bloody sweat 血汗blotch斑点blowing wound 开放性气胸
2 . 污点
blossom type catheter 开花式导尿管blotch污点,斑点blotter 吸墨纸,吸油